A brief review of the existing generalizations of phenomenological model of solid propellants combustion, originally formulated by Ya. B. Zel'dovich in 1942, is presented. The model still remains valid and allows the description of different patterns of solid propellant transient combustion. However, over the years after this formulation was published, several publications appeared in the literature with assumptions that are not justified. Shortcomings of different model options and their limits of applicability are discussed. In fact, in some cases the attempts of model generalization are based on rather strong additional assumptions that lead to narrowing the applicability range of the model.
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机译：简要回顾了Ya最初提出的固体推进剂燃烧现象学模型的现有概括。 B. Zel'dovich于1942年提出。该模型仍然有效，并允许描述固体推进剂瞬态燃烧的不同模式。然而，在该配方发表后的数年中，文献中出现了一些没有合理假设的出版物。讨论了不同模型选项的缺点及其适用范围。实际上，在某些情况下，模型泛化的尝试是基于相当强大的附加假设，这些假设导致缩小模型的适用范围。
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